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A pulse of oxygen increase in the early Mesoproterozoic ocean at ca. 1.57-1.56 Ga

文献类型：期刊论文

作者Shang, Mohan1,7; Tang, Dongjie2,7; Shi, Xiaoying1,7; Zhou, Limin3; Zhou, Xiqiang4; Song, Huyue5; Jiang, Ganqing6
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2019-12-01
卷号527页码:16
关键词boring billion oxygenation episode Gaoyuzhuang Formation 1(Ca+Mg) North China Platform
ISSN号0012-821X
DOI10.1016/j.epsl.2019.115797
英文摘要The relationship between oxygen and evolution of early eukaryotes including algae and primitive animals in geological history has been debated, partly due to the varying estimates of oxygen levels in the mid-Proterozoic (ca. 1.80.8 Ga) ocean and atmosphere. The upper part of the Gaoyuzhuang Formation (ca. 1.601.54 Ga) in North China hosts decimeter-scale multicellular eukaryotic fossils and is documented with a decrease in cerium anomaly indicative of ocean oxygenation. However, the atmospheric oxygen level across this interval and its subsequent oxidation state require further investigation using additional redox proxies. Here we report I/(Ca+Mg) ratios, carbonate/organic carbon isotopes (delta C-13(carb) and delta C-13(org)), and phosphorous (P) contents across the ca. 1.57-1.56 Ga fossil-bearing interval in the North China Platform. High I/(Ca+Mg) ratios (>= 2.6 mu mol/mol; up to 3.8 mu mol/mol) from shallow-water carbonates of the Gaoyuzhuang Formation suggest an episode of significant oxygen increase up to >= 4% PAL (present atmospheric level). The I/(Ca+Mg) ratios return back to >= 0.5 mu mol/mol shortly after the peak values without evidence for increasing water depth or diagenetic alteration, implying a short-lived oxidation event. The increase of I/(Ca+Mg) ratios is associated with a -3.5 parts per thousand negative delta C-13(carb) and delta C-13(org) anomaly and an increase in P/Al ratios that are best explained by oxidation of dissolved organic carbon (DOC) in the ocean. Oxygen consumption through oxidation of DOC may have quickly lowered marine and atmospheric O-2 levels to the early mid-Proterozoic (1.81.4 Ga) background oxygen concentration of >= 0.1-1% PAL. Short-lived oxidation events in an overall anoxic mid-Proterozoic ocean and atmosphere best explain the existing geochemical data and evolutionary stasis of eukaryotes during the "Boring Billion". (C) 2019 Elsevier B.V. All rights reserved.
WOS关键词CARBON-ISOTOPE EXCURSIONS ; EARLY MARINE DIAGENESIS ; ATMOSPHERIC OXYGEN ; GAOYUZHUANG FORMATION ; MCARTHUR BASIN ; BLACK SHALES ; REDOX PROXY ; I/CA RATIOS ; ARABIAN SEA ; EVOLUTION
资助项目National Natural Science Foundation of China[41672336] ; Fundamental Research Funds for the Central Universities[2652018005] ; Fundamental Research Funds for the Central Universities[2652017050]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000491609700008
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/95697]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Tang, Dongjie; Shi, Xiaoying
作者单位1.China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
2.China Univ Geosci Beijing, Inst Earth Sci, Beijing 100083, Peoples R China
3.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
5.China Univ Geosci Wuhan, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Hubei, Peoples R China
6.Univ Nevada, Dept Geosci, Las Vegas, NV 89154 USA
7.China Univ Geosci Beijing, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Shang, Mohan,Tang, Dongjie,Shi, Xiaoying,et al. A pulse of oxygen increase in the early Mesoproterozoic ocean at ca. 1.57-1.56 Ga[J]. EARTH AND PLANETARY SCIENCE LETTERS,2019,527:16.
APA Shang, Mohan.,Tang, Dongjie.,Shi, Xiaoying.,Zhou, Limin.,Zhou, Xiqiang.,...&Jiang, Ganqing.(2019).A pulse of oxygen increase in the early Mesoproterozoic ocean at ca. 1.57-1.56 Ga.EARTH AND PLANETARY SCIENCE LETTERS,527,16.
MLA Shang, Mohan,et al."A pulse of oxygen increase in the early Mesoproterozoic ocean at ca. 1.57-1.56 Ga".EARTH AND PLANETARY SCIENCE LETTERS 527(2019):16.

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来源：地质与地球物理研究所

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